<template>
<div class="cmt-container">
    <h3>发表评论</h3>
    <hr>
    <textarea placeholder="你的评论可以一针见血" maxlength="120" v-model="msg"></textarea>

    <mt-button type="primary" size="large" @click="postComments">发表评论</mt-button>

    <div class="cmt-list">
      <div class="cmt-item" v-for="(item,i) in comments" :key="item.add_time">
        <div class="cmt-title">
          第{{i+1}}楼&nbsp;&nbsp;用户：{{item.user_name}}&nbsp;&nbsp;发表时间:{{item.add_time | dateFormat}}
        </div>
        <div class="cmt-body">
          {{item.content===""?"这个用户很懒啊":item.content}}
        </div>
      </div>

    </div>

    <mt-button type="danger" size="large" plain @click="getMore">加载更多</mt-button>
  </div>
</template>

<script>
import {Toast} from "mint-ui"
export default {
  data(){
      return {
        comments:[],
        pageindex:1,
        msg:""
      }
  },
  created(){
    this.getcomments();
  },
  props:["id"],
  methods:{
    getcomments(){
      this.$http.get("api/getcomments/"+this.id+"?pageindex="+this.pageindex).then(res=>{
        if(res.body.status===0){
          this.comments=this.comments.concat(res.body.message);
        }else{
          Toast("获取评论失败~");
        }
      });
    },
    getMore(){
      this.pageindex++;
      this.getcomments();
    },
    postComments(){
      if(this.msg.trim().length===0){
        return Toast("评论信息不能为空~");
      }
      this.$http.post("api/postcomment/"+this.$route.params.id,{content:this.msg.trim()}).then(res=>{
        if(res.body.status===0){
          let newcom={
            user_name:"匿名用户",
            add_time:Date.now(),
            content:this.msg.trim()
          };
          this.comments.unshift(newcom);
          this.msg="";
        }else{
          Toast("评论失败~");
        }
      })
  },
  }
};
</script>

<style scoped lang="scss">
.cmt-container {
  h3 {
    font-size: 18px;
  }
  textarea {
    font-size: 14px;
    height: 85px;
    margin: 0;
  }

  .cmt-list {
    margin: 5px 0;
    .cmt-item {
      font-size: 13px;
      .cmt-title {
        line-height: 30px;
        background-color: #ccc;
      }
      .cmt-body {
        line-height: 35px;
        text-indent: 2em;
      }
    }
  }
}
</style>
